The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 1989
Filed:
Sep. 14, 1987
Hirokatsu Yashiro, Kawasaki, JP;
Jiro Ohno, Kawasaki, JP;
Yoshiteru Matsuo, Kimitsu, JP;
Hiroshi Nishikawa, Kimitsu, JP;
Katsuhiko Yui, Kimitsu, JP;
Hirotoshi Kawamura, Kitakyushu, JP;
Nippon Steel Corporation, , JP;
Abstract
For measuring the sizes of particles in the falling state, electromagnetic waves having different frequencies are transmitted from a transmitter/receiver onto the particles in the falling state and reflected electromagnetic waves having different frequencies reflected from the particles in the falling state and received by the transmitter/receiver. Data of the distribution of sizes of the particles and the average size of the particles are derived from the detected intensities of the received reflected electromagnetic waves.